ADT to West Columbia Time Converter
West Columbia's clocks go back 1 hour on Sun, Nov 1 · EDT → EST
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Quick answers
Selected conversion
9:00 am09:00 ADT (UTC-3), Oct 26, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 26, 2026
ADT is 1 hour ahead of West Columbia.
How the time difference changes
For most of the year, ADT is 1 hour ahead of West Columbia. From Nov 1, 2026 to Mar 14, 2027, AST is 1 hour ahead of West Columbia. Briefly around clock changes, ADT is 2 hours ahead of West Columbia or AST and West Columbia have the same time.
For most of the year, working hours of 9:00 am to 6:00 pm in ADT correspond to 8:00 am to 5:00 pm in West Columbia. At other times of the year, working hours of 9:00 am to 6:00 pm in AST correspond to 8:00 am to 5:00 pm in West Columbia.For most of the year, working hours of 09:00 to 18:00 in ADT correspond to 08:00 to 17:00 in West Columbia. At other times of the year, working hours of 09:00 to 18:00 in AST correspond to 08:00 to 17:00 in West Columbia.
Compare ADT time with West Columbia time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Atlantic Daylight Time is 1 hour ahead of EDT (Eastern Daylight Time).
9:00 am09:00 in ADT is 8:00 am08:00 in West Columbia, SC, USA
ADT to West Columbia call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in ADT which corresponds to 9am-5pm09:00-17:00 in West Columbia
9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
8:00 am08:00 EDT (Eastern Daylight Time) (West Columbia, SC, USA). Offset UTC -4:00 hours
9:00 am09:00 ADT / 8:00 am08:00 West Columbia, SC, USA
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Atlantic Daylight Time
Offset: ADT is 3 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bermuda, Canada, Greenland
Principal Cities: The largest city in the ADT time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Moncton, Saint John, Fredericton.
French: HAA - Heure Avancée de l'Atlantique
Today all shaded areas are on ADT.
Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Atlantic Standard Time (AST).
Start: Atlantic Daylight Time (ADT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Atlantic Daylight Time (ADT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
See Canada daylight saving time and upcoming clock changes worldwide.
ADT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for ADT
- P - short form of 'Papa'
- America/Glace_Bay
- America/Goose_Bay
- America/Halifax
- America/Moncton
- America/Thule
- Atlantic/Bermuda
- Canada/Atlantic
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasilia Time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- FKT - Falkland Islands Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- PYT - Paraguay Time
- SRT - Suriname Time
- UYT - Uruguay Time
West Columbia Time Zone and Facts
Time Zone
EST – Eastern Standard Time, UTC-5 (standard time)